Three-phase power tester



FIG. 1 is a top, front right perspective view of a three-phase power tester showing my new design.

FIG. 2 is a bottom, rear left perspective view thereof.

FIG. 3 is a top plan view thereof.

FIG. 4 is a front elevation view thereof.

FIG. 5 is a right side elevation view thereof.

FIG. 6 is a left side elevation view thereof.

FIG. 7 is a rear elevation view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the figures represent aspects of the three-phase power tester that form no part of the claimed design. 

CLAIM The ornamental design for a three-phase power tester, as shown and described. 